42 research outputs found
Mechanical properties and energy absorption capacity of chopped fiber reinforced natural rubber
Molecular characterization of Hymenolepis nana based on nuclear rDNA ITS2 gene marker
Introduction: Hymenolepis nana is a zoonotic tapeworm with widespread
distribution. The goal of the present study was to identify the
parasite in the specimens collected from NorthWestern regions of Iran
using PCR-sequencing method. Methods: A total of 1521 stool samples
were collected from the study individuals. Initially, the
identification of hymenolepis nana was confirmed by parasitological
method including direct wet-mount and formalin-ethyl acetate
concentration methods. Afterward, PCR-sequencing analysis of ribosomal
ITS2 fragment was targeted to investigate the molecular identification
of the parasite. Results: Overall, 0.65% (10/1521) of the isolates were
contaminated with H. nana in formalin-ethyl acetate concentration. All
ten isolates were succefully amplified by PCR and further sequenced.
The determined sequences were deposited in GenBank under the accession
numbers MH337810 -MH337819. Conclusion: Our results clarified the
presence of H. nana among the patients in the study areas. In addition,
the molecular technique could be accessible when the human eggs are the
only sources available to identify and diagnose the parasite. DOI:
https://dx.doi.org/10.4314/ahs.v19i1.6 Cite as: Shahnazi M, Mehrizi MZ,
Alizadeh SA, Heydarian P, Saraei M, Alipour M, Hajialilo E. Molecular
characterization of Hymenolepis nana (Cestoda: Cyclophyllidea:
Hymenolepididae) based on nuclear rDNA ITS2 gene marker. Afri Health
Sci. 2019;19(1): 1346- 1352. https://dx.doi.org/10.4314/ahs.v19i1.
Experimental and numerical investigation of the impact response of elastomer layered fiber metal laminates (EFMLs)
Highly efficient removal of basic blue 41 with nanoporous silica
AbstractThe adsorption characteristics of basic blue 41 from aqueous solution were investigated using nanoporous silica (NPS). NPS with an average pore diameter of 2.4nm and a surface area of 1030m2/g was synthesized by using nonyl phenol ethoxylated decylether (NP-10) as structure directing agent (SDA) and ethyl silicate 40% (ETS-40) under acidic condition. This adsorbent was analyzed by means of small-angle X-ray scattering, scanning electron microscopy, N2 adsorption–desorption isotherm and Fourier transforms infrared spectroscopy. The kinetic data reveals that the adsorption process follows the linear form of the pseudo-second-order model. The adsorption isotherm was fitted well to the Langmuir data. The monolayer adsorption capacity of adsorbent was found to be 345mg/g